Co může znamenat následující Firebird SQL chyba?

cursor identified in the UPDATE or DELETE statement is not positioned on a row.No current record for fetch operation.



Dotaz:

select cast(lsd.OrdNumber as integer), fi.Name,    
 ib_decodedate_day(lsd.Docdate$date) || '.' || ib_decodedate_month(lsd.Docdate$date) || '.' || ib_decodedate_year(lsd.Docdate$date), 
    lsd.id from LogStoreDocuments lsd, Firms fi 
    left join STOREDOCUMENTS on lsd.STOREDOCUMENT_ID = STOREDOCUMENTS.ID 
    left join FIRMOFFICES on FIRMOFFICES.ID = STOREDOCUMENTS.FIRMOFFICE_ID 
    left join addresses on FirmOffices.ADDRESS_ID = addresses.id 
     where lsd.Firm_ID = fi.ID and 
        lsd.x_zpracoval_terminal <> 'A' and lsd.documentType = 32